A direct result of Rosa Park’s refusal to give up her seat on a Montgomery bus in 1955 was

Rosa Parks was arrested in Montgomery in 1955 after refusing to give up her bus seat. Her arrest helped spark the Montgomery Bus Boycott, in which Black residents stopped riding the city buses to protest segregation. The Greensboro sit-in and March on Washington happened later, and the NAACP had been founded decades earlier.

AI-written and checked against the verified answer.